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. 2015 Mar 31;15(4):7768–7806. doi: 10.3390/s150407768

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© 2015 by the authors; licensee MDPI, Basel, Switzerland.

This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/).

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Best value comparison for efficiency and trip distance. (a) Percentage comparison against the best value obtained for efficiency; (b) Percentage comparison against the best value obtained for trip distance.